The long-term policy on the conservation of national cultural heritage in Nepal is governed by the National Cultural Heritage Act of 1992. This act aims to preserve and protect the cultural heritage of Nepal, including buildings, monuments, historical sites, and objects of cultural, historical, and scientific importance.
Under the National Cultural Heritage Act, the Department of Archaeology is responsible for the conservation and protection of cultural heritage sites in Nepal. The department is responsible for conducting research on cultural heritage sites, preparing plans for the conservation and management of these sites, and implementing these plans.
The National Cultural Heritage Act also establishes the National Cultural Heritage Council, which is responsible for advising the government on matters related to the conservation and protection of cultural heritage in Nepal. The council is composed of experts in the fields of archaeology, history, anthropology, art, and other relevant disciplines.
In addition to the National Cultural Heritage Act, the government of Nepal has also implemented a number of other policies and programs to conserve and protect the cultural heritage of the country. These include the National Cultural Policy, the National Plan of Action for Cultural Heritage Conservation, and the Nepal Cultural Heritage Project.
Overall, the long-term policy on the conservation of national cultural heritage in Nepal is focused on preserving and protecting the cultural, historical, and scientific significance of cultural heritage sites in the country, and promoting their sustainable development and use.